[RED FACE]

I don't play this high but his raise gives you 3:1 from the pot to call. It's about 1.5x your bet. This looks like he's not afraid of a draw which is fine. Either he has a medium hand and just wants to see where he is at or he wants you to bluff at it. If the latter then he has a big hand like trips. Also possible is AX hearts. I think you should bet enough to make any flush draw incorrect to call including implied odds so 3bet to 900. He will need to call 580 for a shot at ~1600 if my math is correct. It's important however to make this look like a bluff if at all possible so if your shown bluffs were all-in you may as well all-in here as well. I think you have him-he has trips or maybe 2 pair and calls the push here. If you decide he is a cautious player and just trying to find out where he's at with a medium hand and no draw you could 3bet in size here. Given your image he wont fold a medium hand here and may even commit all-in unable to bear the preasure, lol.